Added OGL to contrib

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6407 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/samples/ogl/studio/symbols.cpp

@@ -0,0 +1,203 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        symbols.cpp
+// Purpose:     Implements the Studio symbol database
+// Author:      Julian Smart
+// Modified by:
+// Created:     12/07/98
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart
+// Licence:
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+// #pragma implementation
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include <wx/wxprec.h>
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+#include <wx/wx.h>
+#endif
+
+#include <wx/wxexpr.h>
+
+#include "studio.h"
+#include "doc.h"
+#include "shapes.h"
+#include "view.h"
+#include "symbols.h"
+
+/*
+ * csSymbol
+ * Represents information about a symbol.
+ */
+
+csSymbol::csSymbol(const wxString& name, wxShape* shape)
+{
+    m_name = name;
+    m_shape = shape;
+    m_toolId = 0;
+}
+
+csSymbol::~csSymbol()
+{
+    delete m_shape;
+}
+
+/*
+ * A table of all possible shapes.
+ * We can use this to construct a palette, etc.
+ */
+csSymbolDatabase::csSymbolDatabase()
+{
+    m_currentId = 800;
+}
+
+csSymbolDatabase::~csSymbolDatabase()
+{
+    ClearSymbols();
+}
+
+void csSymbolDatabase::AddSymbol(csSymbol* symbol)
+{
+    symbol->SetToolId(m_currentId);
+    m_symbols.Append(symbol);
+
+    m_currentId ++;
+}
+
+void csSymbolDatabase::ClearSymbols()
+{
+    wxNode* node = m_symbols.First();
+    while (node)
+    {
+        csSymbol* symbol = (csSymbol*) node->Data();
+        delete symbol;
+
+        node = node->Next();
+    }
+    m_symbols.Clear();
+}
+
+csSymbol* csSymbolDatabase::FindSymbol(const wxString& name) const
+{
+    wxNode* node = m_symbols.First();
+    while (node)
+    {
+        csSymbol* symbol = (csSymbol*) node->Data();
+        if (symbol->GetName() == name)
+            return symbol;
+
+        node = node->Next();
+    }
+    return NULL;
+}
+
+csSymbol* csSymbolDatabase::FindSymbol(int toolId) const
+{
+    wxNode* node = m_symbols.First();
+    while (node)
+    {
+        csSymbol* symbol = (csSymbol*) node->Data();
+        if (symbol->GetToolId() == toolId)
+            return symbol;
+
+        node = node->Next();
+    }
+    return NULL;
+}
+
+// Add symbols to database
+void csApp::InitSymbols()
+{
+    m_symbolDatabase = new csSymbolDatabase;
+
+    wxShape* shape = new csCircleShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Circle", shape));
+
+    shape = new csCircleShadowShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Circle shadow", shape));
+
+    shape = new csThinRectangleShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Thin Rectangle", shape));
+
+    shape = new csWideRectangleShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Wide Rectangle", shape));
+
+    shape = new csSemiCircleShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("SemiCircle", shape));
+
+    shape = new csTriangleShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Triangle", shape));
+
+    shape = new csOctagonShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Octagon", shape));
+
+    shape = new csGroupShape();
+    shape->AssignNewIds();
+    shape->SetEventHandler(new csEvtHandler(shape, shape, wxString("")));
+
+    m_symbolDatabase->AddSymbol(new csSymbol("Group", shape));
+}
+
+wxBitmap* csSymbolDatabase::CreateToolBitmap(csSymbol* symbol)
+{
+    int objectBitmapSize = 32;
+
+    symbol->GetShape()->Recompute();
+
+    wxBitmap *newBitmap = new wxBitmap(objectBitmapSize, objectBitmapSize);
+
+    wxMemoryDC memDC;
+        
+    double height, width, maxSize;
+    symbol->GetShape()->GetBoundingBoxMax(&width, &height);
+
+    if (height > width)
+        maxSize = height;
+    else
+        maxSize = width;
+
+    double borderMargin = 4.0;
+    double scaleFactor = (double)(objectBitmapSize / (maxSize + 2*borderMargin));
+    double centreX = (double)((objectBitmapSize/scaleFactor)/2.0)-1;
+    double centreY = centreX;
+
+    memDC.SelectObject(*newBitmap);
+    memDC.SetUserScale(scaleFactor, scaleFactor);
+
+    memDC.SetBackground(wxBrush(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE), wxSOLID));
+    memDC.Clear();
+    symbol->GetShape()->Show(TRUE);
+    symbol->GetShape()->Move(memDC, centreX, centreY);
+    memDC.SelectObject(wxNullBitmap);
+
+    return newBitmap;
+}
+